> I am not sure if the sending email is the right way to get the forum help. Could you please let me know how to open forum query to ask postgres questions. Sending email to this mailing list regarding your questions is the perfect way to get help. Other than this, there's an IRC channel for PostgreSQL. https://www.postgresql.org/community/irc/ Best regards, -- Tatsuo Ishii SRA OSS, Inc. Japan English: http://www.sraoss.co.jp/index_en.php Japanese:http://www.sraoss.co.jp -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general